Patents by Inventor Masafumi Yamada
Masafumi Yamada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11970194Abstract: A terminal device includes a plurality of processing devices, each of which includes: a database; a state managing unit that manages data stored in the database; a request managing unit that determines data to request from an external system and an order in which the data is to be requested from the external system based on a management state of the data in the state managing unit, a management state of data in a state managing unit of another processing device, and a type of predetermined event requiring data in a case where the predetermined event has occurred, the request managing unit being capable of requesting data from the external system on the basis of the order; and an obtainment managing unit that manages a state of obtainment of data from the external system, and a request managing unit of a predetermined processor requests data from the external system.Type: GrantFiled: December 6, 2018Date of Patent: April 30, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Mototsugu Kozaki, Masafumi Yamada, Yoko Itado
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Patent number: 11472202Abstract: In a medium heating device, a medium is conveyed along a conveyance path. A first contact heater contacts a back surface of the medium. A second contact heater is disposed downstream from the first contact heater in a conveyance direction of the medium and contacts the back surface of the medium. A non-contact heater faces the second contact heater across the conveyance path and heats a front surface of the medium at a position separated from the medium on the conveyance path. In an operation period in which the medium is intermittently conveyed on the conveyance path, circuitry supplies power to each of the first contact heater, the second contact heater, and the non-contact heater to generate heat, and the power supplied to the second contact heater is smaller than the power supplied to the first contact heater.Type: GrantFiled: July 27, 2021Date of Patent: October 18, 2022Assignee: RICOH COMPANY, LTD.Inventor: Masafumi Yamada
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Patent number: 11383528Abstract: A liquid discharge apparatus includes a heater configured to heat a medium, a detector configured to detect a temperature of the heater, a conveyor configured to convey the medium during a printing operation, and circuitry configured to control the heater to heat the medium with a first output during a preheating operation before the printing operation, control the heater to heat the medium with a second output that is equal to or higher than the first output when the temperature of the heater reaches a predetermined threshold value to complete the preheating operation, and control the conveyor to start conveying the medium to start the printing operation.Type: GrantFiled: September 28, 2020Date of Patent: July 12, 2022Assignee: RICOH COMPANY, LTD.Inventor: Masafumi Yamada
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Publication number: 20220063303Abstract: In a medium heating device, a medium is conveyed along a conveyance path. A first contact heater contacts a back surface of the medium. A second contact heater is disposed downstream from the first contact heater in a conveyance direction of the medium and contacts the back surface of the medium. A non-contact heater faces the second contact heater across the conveyance path and heats a front surface of the medium at a position separated from the medium on the conveyance path. In an operation period in which the medium is intermittently conveyed on the conveyance path, circuitry supplies power to each of the first contact heater, the second contact heater, and the non-contact heater to generate heat, and the power supplied to the second contact heater is smaller than the power supplied to the first contact heater.Type: ApplicationFiled: July 27, 2021Publication date: March 3, 2022Inventor: Masafumi YAMADA
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Publication number: 20220024500Abstract: A terminal device includes a plurality of processing devices, each of which includes: a database; a state managing unit that manages data stored in the database; a request managing unit that determines data to request from an external system and an order in which the data is to be requested from the external system based on a management state of the data in the state managing unit, a management state of data in a state managing unit of another processing device, and a type of predetermined event requiring data in a case where the predetermined event has occurred, the request managing unit being capable of requesting data from the external system on the basis of the order; and an obtainment managing unit that manages a state of obtainment of data from the external system, and a request managing unit of a predetermined processor requests data from the external system.Type: ApplicationFiled: December 6, 2018Publication date: January 27, 2022Applicant: Mitsubishi Electric CorporationInventors: Mototsugu KOZAKI, Masafumi YAMADA, Yoko ITADO
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Patent number: 11014380Abstract: A heating device includes a pre-heater configured to pre-heat a medium, onto which a liquid is discharged from a liquid discharger, at a first position upstream of the liquid discharger in a conveyance direction of the medium, a print-heater configured to heat the medium at a second position opposite the liquid discharger, a post-heater configured to post-heat the medium at a third position downstream of the second position in the conveyance direction, and circuitry configured to control a temperature of each of the pre-heater, the print-heater, and the post-heater. The pre-heater includes a first pre-heater and a second pre-heater disposed closer to the print-heater than the first pre-heater, and the circuitry controls a temperature of the second pre-heater to be between a temperature of the first pre-heater and the temperature of the print-heater.Type: GrantFiled: November 7, 2019Date of Patent: May 25, 2021Assignee: Ricoh Company, Ltd.Inventors: Masafumi Yamada, Osamu Kizaki, Shizuho Katahira, Junji Nakai
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Patent number: 11007796Abstract: An image forming apparatus includes a heater, a first temperature sensor, a second temperature sensor, and processing circuitry. The heater is configured to heat a medium on which an image is formed. The first temperature sensor is configured to measure a temperature of the heater. The second temperature sensor is configured to measure a temperature of a region heated by the heater. The processing circuitry is configured to control the temperature of the heater. The processing circuitry is configured to control the heater based on a comparison between a measured temperature of the first temperature sensor and a first threshold value, and a comparison between a measured temperature of the second temperature sensor and a second threshold value.Type: GrantFiled: September 24, 2019Date of Patent: May 18, 2021Assignee: Ricoh Company, Ltd.Inventors: Osamu Kizaki, Junji Nakai, Masafumi Yamada, Shizuho Katahira
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Publication number: 20210122171Abstract: A liquid discharge apparatus includes a heater configured to heat a medium, a detector configured to detect a temperature of the heater, a conveyor configured to convey the medium during a printing operation, and circuitry configured to control the heater to heat the medium with a first output during a preheating operation before the printing operation, control the heater to heat the medium with a second output that is equal to or higher than the first output when the temperature of the heater reaches a predetermined threshold value to complete the preheating operation, and control the conveyor to start conveying the medium to start the printing operation.Type: ApplicationFiled: September 28, 2020Publication date: April 29, 2021Inventor: Masafumi YAMADA
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Patent number: 10960908Abstract: An extraction unit (121) determines, by using a fixed composition file, a fixed composition including a car having a specified equipment installed thereon as a fixed specified composition. The extraction unit determines, by using an operation composition file, an operation composition including the fixed specified composition as an operation specified composition. The extraction unit extracts, from an environment file, environment information corresponding to a set of a specified time and the operation specified composition. A conversion unit (122) converts, by using the environment information, state information indicating the state of the specified equipment at the specified time to comparative information indicating the state of the specified equipment in a reference environment. An evaluation unit (123) compares the comparative information with reference information. Then, the evaluation unit evaluates the state of the specified equipment at the specified time based on the comparison result.Type: GrantFiled: August 10, 2016Date of Patent: March 30, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masafumi Yamada, Takeshi Takeuchi, Norimitsu Nagashima
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Patent number: 10807388Abstract: An image forming apparatus includes a plurality of heaters, a plurality of temperature sensors, an object sensor, and control circuitry. The temperature sensors are formed at positions corresponding to the heaters. The object sensor is configured to detect an overlap region of a medium and the heaters. The control circuitry is configured to correct temperature information acquired by the temperature sensors, according to the overlap region detected by the object sensor and the positions of the temperature sensors, and control the heaters based on the corrected temperature information.Type: GrantFiled: September 23, 2019Date of Patent: October 20, 2020Assignee: Ricoh Company, Ltd.Inventors: Osamu Kizaki, Junji Nakai, Masafumi Yamada, Shizuho Katahira
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Patent number: 10787003Abstract: A treatment-liquid application device includes a treatment liquid applicator to apply a treatment liquid to an application target object to which a black liquid and a color liquid other than the black liquid are applied. The treatment liquid applicator applies a greater amount of the treatment liquid per unit area to at least a region to which the color liquid is applied than a region to which the black liquid is applied.Type: GrantFiled: March 6, 2019Date of Patent: September 29, 2020Assignee: Ricoh Company, Ltd.Inventors: Ryuuya Moriya, Masafumi Yamada
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Publication number: 20200164662Abstract: A heating device includes a pre-heater configured to pre-heat a medium, onto which a liquid is discharged from a liquid discharger, at a first position upstream of the liquid discharger in a conveyance direction of the medium, a print-heater configured to heat the medium at a second position opposite the liquid discharger, a post-heater configured to post-heat the medium at a third position downstream of the second position in the conveyance direction, and circuitry configured to control a temperature of each of the pre-heater, the print-heater, and the post-heater. The pre-heater includes a first pre-heater and a second pre-heater disposed closer to the print-heater than the first pre-heater, and the circuitry controls a temperature of the second pre-heater to be between a temperature of the first pre-heater and the temperature of the print-heater.Type: ApplicationFiled: November 7, 2019Publication date: May 28, 2020Applicant: Ricoh Company, Ltd.Inventors: Masafumi Yamada, Osamu Kizaki, Shizuho Katahira, Junji Nakai
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Publication number: 20200101766Abstract: An image forming apparatus includes a plurality of heaters, a plurality of temperature sensors, an object sensor, and control circuitry. The temperature sensors are formed at positions corresponding to the heaters. The object sensor is configured to detect an overlap region of a medium and the heaters. The control circuitry is configured to correct temperature information acquired by the temperature sensors, according to the overlap region detected by the object sensor and the positions of the temperature sensors, and control the heaters based on the corrected temperature information.Type: ApplicationFiled: September 23, 2019Publication date: April 2, 2020Applicant: Ricoh Company, Ltd.Inventors: Osamu Kizaki, Junji Nakai, Masafumi Yamada, Shizuho Katahira
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Publication number: 20200103794Abstract: An image forming apparatus includes a heater, a first temperature sensor, a second temperature sensor, and processing circuitry. The heater is configured to heat a medium on which an image is formed. The first temperature sensor is configured to measure a temperature of the heater. The second temperature sensor is configured to measure a temperature of a region heated by the heater. The processing circuitry is configured to control the temperature of the heater. The processing circuitry is configured to control the heater based on a comparison between a measured temperature of the first temperature sensor and a first threshold value, and a comparison between a measured temperature of the second temperature sensor and a second threshold value.Type: ApplicationFiled: September 24, 2019Publication date: April 2, 2020Applicant: Ricoh Company, Ltd.Inventors: Osamu Kizaki, Junji Nakai, Masafumi Yamada, Shizuho Katahira
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Patent number: 10556449Abstract: A liquid discharge apparatus includes a conveyor to repeat conveyance of a recording medium by a predetermined distance and stop of conveyance of the recording medium; a liquid discharge head to discharge a liquid onto the recording medium; an irradiation device disposed downstream from the liquid discharge head in a direction of conveyance of the recording medium, to irradiate, with an electromagnetic wave, the recording medium onto which the liquid has been discharged by the liquid discharge head; and circuitry configured to control the irradiation device to irradiate the recording medium. The circuitry is configured to set a first irradiation amount during the stop of conveyance to a larger value than a value of a second irradiation amount during the conveyance of the recording medium.Type: GrantFiled: September 19, 2018Date of Patent: February 11, 2020Assignee: Ricoh Company, Ltd.Inventors: Junji Nakai, Masafumi Yamada
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Publication number: 20190275812Abstract: A treatment-liquid application device includes a treatment liquid applicator to apply a treatment liquid to an application target object to which a black liquid and a color liquid other than the black liquid are applied. The treatment liquid applicator applies a greater amount of the treatment liquid per unit area to at least a region to which the color liquid is applied than a region to which the black liquid is applied.Type: ApplicationFiled: March 6, 2019Publication date: September 12, 2019Applicant: Ricoh Company, Ltd.Inventors: Ryuuya Moriya, Masafumi Yamada
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Publication number: 20190232987Abstract: An extraction unit (121) determines, by using a fixed composition file, a fixed composition including a car having a specified equipment installed thereon as a fixed specified composition. The extraction unit determines, by using an operation composition file, an operation composition including the fixed specified composition as an operation specified composition. The extraction unit extracts, from an environment file, environment information corresponding to a set of a specified time and the operation specified composition. A conversion unit (122) converts, by using the environment information, state information indicating the state of the specified equipment at the specified time to comparative information indicating the state of the specified equipment in a reference environment. An evaluation unit (123) compares the comparative information with reference information. Then, the evaluation unit evaluates the state of the specified equipment at the specified time based on the comparison result.Type: ApplicationFiled: August 10, 2016Publication date: August 1, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masafumi YAMADA, Takeshi TAKEUCHI, Norimitsu NAGASHIMA
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Publication number: 20190100032Abstract: A liquid discharge apparatus includes a conveyor to repeat conveyance of a recording medium by a predetermined distance and stop of conveyance of the recording medium; a liquid discharge head to discharge a liquid onto the recording medium; an irradiation device disposed downstream from the liquid discharge head in a direction of conveyance of the recording medium, to irradiate, with an electromagnetic wave, the recording medium onto which the liquid has been discharged by the liquid discharge head; and circuitry configured to control the irradiation device to irradiate the recording medium. The circuitry is configured to set a first irradiation amount during the stop of conveyance to a larger value than a value of a second irradiation amount during the conveyance of the recording medium.Type: ApplicationFiled: September 19, 2018Publication date: April 4, 2019Applicant: Ricoh Company, Ltd.Inventors: Junji Nakai, Masafumi Yamada
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Patent number: 10232641Abstract: A drying device includes: a dielectric heating unit configured to apply an alternating electrical field to a medium onto which a liquid containing a conductive material, water, and a solvent has been discharged, and perform dielectric heating of the liquid; and a conductive member disposed either to make contact with or to be close to the medium to which the alternating electrical field is being applied.Type: GrantFiled: March 15, 2017Date of Patent: March 19, 2019Assignee: Ricoh Company, Ltd.Inventor: Masafumi Yamada
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Publication number: 20170266986Abstract: A drying device includes: a dielectric heating unit configured to apply an alternating electrical field to a medium onto which a liquid containing a conductive material, water, and a solvent has been discharged, and perform dielectric heating of the liquid; and a conductive member disposed either to make contact with or to be close to the medium to which the alternating electrical field is being applied.Type: ApplicationFiled: March 15, 2017Publication date: September 21, 2017Inventor: Masafumi YAMADA